US Bridges

RTE 12 over Deer River

Fair

Lewis County, New York · 0.1 MI SE JCT 12 & 194 · Structure no. 000000001009630

Built
2007
18 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
143 ft
1 main span
Daily traffic
4,017
2016 count
Owner
State
State Highway Agency

About this bridge

RTE 12 over Deer River is a prestressed concrete stringer/multi-beam or girder carrying RTE 12 over Deer River in Lewis County, New York. It was built in 2007, so it is 18 years old, younger than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 4,017 vehicles a day, roughly 11% of them trucks, projected to reach 4,055 by 2041. The structure is 143 ft (43.6 m) long and 54 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesRTE 12
CrossesDeer River
Location0.1 MI SE JCT 12 & 194
RouteState Highway 12
CountyLewis County
StateNew York
Coordinates43.89254, -75.67209
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure9 ExcellentNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.9 US tons
Inventory rating54 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length143 ft (43.6 m)
Longest span138 ft (42 m)
Deck width54 ft (16.6 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,017 (2016)
Projected traffic4,055 by 2041
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$3.2 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 12 over Deer River built?

It was built in 2007, making it 18 years old in 2025.

What condition is RTE 12 over Deer River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2023.

How much traffic does RTE 12 over Deer River carry?

About 4,017 vehicles per day (2016 count), of which roughly 11% are trucks.

How long is RTE 12 over Deer River?

The structure is 143 ft (43.6 m) long with a longest span of 138 ft (42 m) and a deck 54 ft wide.

Who owns RTE 12 over Deer River?

It is owned by the State Highway Agency.